It was a year of change for Ashton Kutcher, who took on a new gig as Charlie Sheen's replacement on Two and a Half Men in September. He'll continue on the high-rated — and high-paying — show next season as well. Tech fan Ashton continued to champion a number of tech start-ups and tweeted about his finds to his over 11 million followers. Fittingly, Ashton was also selected to play Steve Jobs in a film about the Apple founder's life.

There was plenty of personal upheaval for Ashton, too, when his six-year marriage to Demi Moore came to an end. She filed for divorce in November 2011. Since the demise of their relationship, Ashton has been romantically linked to many ladies, including his former That '70s Show castmate Mila Kunis.